P0376 Generic (SAE) Basic entry

Timing Reference High Resolution Signal 'B' Too Many Pulses

Updated 2026-10-02 · Ignition system & misfires

Severity

Medium

Typical repair cost

60 – 500 EUR

System

Powertrain

What it means

P0376 is defined as "Timing Reference High Resolution Signal 'B' Too Many Pulses". the engine control module stores it when the monitored condition for this component or system is outside the limits programmed by the manufacturer.

This entry is compiled automatically from the standard definition and typical diagnostic practice for this type of fault. A detailed, reviewed article is in preparation.

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Symptoms

Flashing or steady check engine light
Engine shaking, especially at idle
Loss of power under load
Fuel smell from the exhaust
Risk of catalytic converter damage if ignored

Common causes

Timing Reference Resolution Signal 'B' Too Many Pulses worn, contaminated or out of calibration
Mechanical problem in the system the sensor measures
Air, vacuum or exhaust leak influencing the reading
Wrong or low-quality replacement part
Wiring resistance causing a small voltage offset

How to diagnose

Compare the live Timing Reference Resolution Signal 'B' Too Many Pulses reading with a known-good value or a second sensor at idle and at 2500 rpm
Check for air, vacuum or exhaust leaks that could skew the reading
Inspect the component for contamination and clean it if the design allows
Verify the part number is correct for the engine
Replace the Timing Reference Resolution Signal 'B' Too Many Pulses if the reading remains out of specification

Frequently asked questions

Can I keep driving with P0376?

Usually yes for a short time, but expect reduced performance or higher fuel use. Have it diagnosed within a few days.

Will clearing P0376 fix it?

No. Clearing only erases the stored code; it returns as soon as the monitor runs again unless the cause is repaired.

Related codes

P0374 P0375 P0377 P0378